SN74LV245AT OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCLS605B – DECEMBER 2004 – REVISED AUGUST 2005 FEATURES • • Ioff Supports Partial-Power-Down Mode Operation Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A114-A) – 1000-V Charged-Device Model (C101) xxxxxxx DB, DGV, DW, NS, OR PW PACKAGE (TOP VIEW) 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC OE B1 B2 B3 B4 B5 B6 B7 B8 A1 A2 A3 A4 A5 A6 A7 A8 VCC DIR A1 A2 A3 A4 A5 A6 A7 A8 GND RGY PACKAGE (TOP VIEW) 1 20 3 4 19 OE 18 B1 17 B2 5 6 16 B3 15 B4 7 8 14 B5 13 B6 9 12 B7 2 10 11 B8 • • DIR • Inputs Are TTL-Voltage Compatible 4.5-V to 5.5-V VCC Operation Typical tpd of 3.5 ns at 5 V Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 5 V, TA = 25°C Typical VOHV (Output VOH Undershoot) >2.3 V at VCC = 5 V, TA = 25°C Supports Mixed-Mode Voltage Operation on All Ports GND • • • • DESCRIPTION/ORDERING INFORMATION This octal bus transceiver is designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. The SN74LV245AT allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. ORDERING INFORMATION PACKAGE (1) TA QFN – RGY (1) TOP-SIDE MARKING Tape and reel SN74LV245ATRGYR Tube SN74LV245ATDW Tape and reel SN74LV245ATDWR SOP – NS Tape and reel SN74LV245ATNSR 74LV245A SSOP – DB Tape and reel SN74LV245ATDBR LV245A TSSOP – PW Tape and reel SN74LV245ATPWR LV245AT TVSOP – DGV Tape and reel SN74LV245ATGVR LV245A SOIC – DW –40°C to 85°C ORDERABLE PART NUMBER VV245 LV245A Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2004–2005, Texas Instruments Incorporated SN74LV245AT OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCLS605B – DECEMBER 2004 – REVISED AUGUST 2005 DESCRIPTION/ORDERING INFORMATION (CONTINUED) To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. FUNCTION TABLE (EACH TRANSCEIVER) INPUTS OPERATION OE DIR L L B data to A bus L H A data to B bus H X Isolation LOGIC DIAGRAM (POSITIVE LOGIC) DIR 1 19 A1 2 18 To Seven Other Channels 2 OE B1 SN74LV245AT OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCLS605B – DECEMBER 2004 – REVISED AUGUST 2005 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) MIN MAX VCC Supply voltage range –0.5 7 V VI Input voltage range (2) –0.5 7 V –0.5 7 V –0.5 VCC + 0.5 state (2) UNIT VO Voltage range applied to any output in the high-impedance or power-off VO Output voltage range applied in the high or low state (2) (3) IIK Input clamp current VI < 0 –20 mA IOK Output clamp current VO < 0 or VO > VCC ±50 mA IO Continuous output current VO = 0 to VCC ±35 mA ±70 mA Continuous current through VCC or GND DB θJA Package thermal impedance package (4) 70 DGV package (4) 92 DW package (4) 58 NS package (4) 60 PW package (4) 83 RGY package (5) Tstg (1) (2) (3) (4) (5) Storage temperature range V °C/W 37 –65 150 °C Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. This value is limited to 5.5 V maximum. The package thermal impedance is calculated in accordance with JESD 51-7. The package thermal impedance is calculated in accordance with JESD 51-5. Recommended Operating Conditions (1) VCC Supply voltage VIH High-level input voltage VCC = 4.5 V to 5.5 V VIL Low-level input voltage VCC = 4.5 V to 5.5 V VI Input voltage MIN MAX 4.5 5.5 2 UNIT V V 0.8 V 0 5.5 V High or low state 0 VCC 3-state 0 5.5 VO Output voltage IOH High-level output current VCC = 4.5 V to 5.5 V –16 IOL Low-level output current VCC = 4.5 V to 5.5 V 16 mA ∆t/∆v Input transition rise or fall rate VCC = 4.5 V to 5.5 V 20 ns/V TA Operating free-air temperature 85 °C (1) –40 V mA All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. 3 SN74LV245AT OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCLS605B – DECEMBER 2004 – REVISED AUGUST 2005 Electrical Characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VOH VOL TEST CONDITIONS VCC TA = –40°C to 85°C TA = 25°C MIN TYP 4.5 IOH = –50 µA 4.5 V 4.4 IOH = –16 mA 4.5 V 3.8 IOL = 50 µA 4.5 V IOL = 16 mA 4.5 V MAX UNIT MIN MAX 4.4 V 3.8 0 0.1 0.1 0.55 0.55 V II VI = 5.5 V or GND 0 to 5.5 V ±0.1 ±1 µA IOZ VO = VCC or GND 5.5 V ±0.25 ±2.5 µA ICC VI = VCC or GND, IO = 0 5.5 V 2 20 µA One input at 3.4 V, Other inputs at VCC or GND 5.5 V 1.35 1.5 mA 0 0.5 5 µA ∆ICC (1) Ioff VI or VO = 0 to 5.5 V Ci Control inputs VI = VCC or GND 5V 3 pF Cio A or B port VO = VCC or GND 5V 7 pF (1) This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC. Switching Characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER tPLH tPHL tPZH tPZL tPHz tPLZ tPLH tPHL tPZH tPZL tPHZ tPLZ tsk(o) 4 FROM (INPUT) TO (OUTPUT) LOAD CAPACITANCE A or B B or A CL = 15 pF OE A or B CL = 15 pF OE A or B CL = 15 pF A or B B or A CL = 50 pF OE A or B CL = 50 pF OE A or B CL = 50 pF CL = 50 pF TA = 25°C MIN MAX MIN TYP MAX 3.1 4.9 7.7 1 8.5 2.3 4.9 7.7 1 8.5 3.5 9.4 13.8 1 15 3.7 9.4 13.8 1 15 3.5 3.9 7.5 1 8 2.6 3.9 7.5 1 8 4.6 5.4 8.7 1 9.5 4.7 5.4 8.7 1 9.5 4.9 9.9 14.8 1 16 5.3 9.9 14.8 1 16 4.5 10.1 15.4 1 16.5 4.1 10.1 15.4 1 16.5 1 1 UNIT ns ns ns ns ns ns ns SN74LV245AT OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCLS605B – DECEMBER 2004 – REVISED AUGUST 2005 Noise Characteristics (1) VCC = 5 V, CL = 50 pF TA = 25°C PARAMETER MIN TYP MAX UNIT VOL(P) Quiet output, maximum dynamic VOL 1.1 1.5 V VOL(V) Quiet output, minimum dynamic VOL –1.1 –1.5 V VOH(V) Quiet output, minimum dynamic VOH 4 VIH(D) High-level dymanic input voltage VIL(D) Low-level dynamic input voltage (1) V 2 V 0.8 V Characteristics are for surface-mount packages only. Operating Characteristics VCC = 5 V, TA = 25°C PARAMETER Cpd Power dissipation capacitance Outputs enabled TEST CONDITIONS CL = 50 pF, f = 10 MHz TYP 19 UNIT pF 5 SN74LV245AT OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCLS605B – DECEMBER 2004 – REVISED AUGUST 2005 PARAMETER MEASUREMENT INFORMATION VCC From Output Under Test Test Point RL = 1 kΩ From Output Under Test CL (see Note A) S1 Open TEST GND CL (see Note A) LOAD CIRCUIT FOR TOTEM-POLE OUTPUTS S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open Drain Open VCC GND VCC LOAD CIRCUIT FOR 3-STATE AND OPEN-DRAIN OUTPUTS 3V 1.5 V Timing Input 0V tw 3V 1.5 V Input 1.5 V th tsu 3V 1.5 V Data Input 1.5 V 0V 0V VOLTAGE WAVEFORMS PULSE DURATION VOLTAGE WAVEFORMS SETUP AND HOLD TIMES 3V 1.5 V Input 1.5 V 0V tPLH In-Phase Output tPHL 50% VCC tPHL Out-of-Phase Output VOH 50% VCC VOL Output Waveform 1 S1 at VCC (see Note B) VOH 50% VCC VOL VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING AND NONINVERTING OUTPUTS 1.5 V 1.5 V 0V tPZL tPLZ ≈VCC 50% VCC tPZH tPLH 50% VCC 3V Output Control Output Waveform 2 S1 at GND (see Note B) VOL + 0.3 V VOL tPHZ 50% VCC VOH − 0.3 V VOH ≈0 V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES LOW- AND HIGH-LEVEL ENABLING NOTES: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control. C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr ≤ 3 ns, tf ≤ 3 ns. D. The outputs are measured one at a time, with one input transition per measurement. E. tPLZ and tPHZ are the same as tdis. F. tPZL and tPZH are the same as ten. G. tPHL and tPLH are the same as tpd. H. All parameters and waveforms are not applicable to all devices. Figure 1. Load Circuits and Voltage Waveforms 6 SN74LV245AT OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCLS605B – DECEMBER 2004 – REVISED AUGUST 2005 MECHANICAL DATA 7 PACKAGE OPTION ADDENDUM www.ti.com 4-Jun-2007 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty SN74LV245ATDBR ACTIVE SSOP DB 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATDBRE4 ACTIVE SSOP DB 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATDBRG4 ACTIVE SSOP DB 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATDGVR ACTIVE TVSOP DGV 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATDGVRE4 ACTIVE TVSOP DGV 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATDGVRG4 ACTIVE TVSOP DGV 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATDW ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATDWE4 ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATDWG4 ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATDWR ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATDWRE4 ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATDWRG4 ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATNSR ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATNSRE4 ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATNSRG4 ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATPW ACTIVE TSSOP PW 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATPWE4 ACTIVE TSSOP PW 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATPWG4 ACTIVE TSSOP PW 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATPWR ACTIVE TSSOP PW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATPWRE4 ACTIVE TSSOP PW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATPWRG4 ACTIVE TSSOP PW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATPWT ACTIVE TSSOP PW 20 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATPWTE4 ACTIVE TSSOP PW 20 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATPWTG4 ACTIVE TSSOP PW 20 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LV245ATRGYR ACTIVE QFN RGY 20 1000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Addendum-Page 1 Lead/Ball Finish MSL Peak Temp (3) PACKAGE OPTION ADDENDUM www.ti.com 4-Jun-2007 Orderable Device Status (1) Package Type Package Drawing SN74LV245ATRGYRG4 ACTIVE QFN RGY Pins Package Eco Plan (2) Qty 20 1000 Green (RoHS & no Sb/Br) Lead/Ball Finish CU NIPDAU MSL Peak Temp (3) Level-2-260C-1 YEAR (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 19-May-2007 TAPE AND REEL INFORMATION Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com Device 19-May-2007 Package Pins Site Reel Diameter (mm) Reel Width (mm) A0 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant SN74LV245ATDBR DB 20 MLA 330 16 8.2 7.5 2.5 12 16 Q1 SN74LV245ATDGVR DGV 20 MLA 330 12 7.0 5.6 1.6 8 12 Q1 SN74LV245ATDWR DW 20 MLA 330 24 10.8 13.0 2.7 12 24 Q1 SN74LV245ATNSR NS 20 MLA 330 24 8.2 13.0 2.5 12 24 Q1 SN74LV245ATPWR PW 20 MLA 330 16 6.95 7.1 1.6 8 16 Q1 SN74LV245ATRGYR RGY 20 MLA 180 12 3.8 4.8 1.6 8 12 Q1 TAPE AND REEL BOX INFORMATION Device Package Pins Site Length (mm) Width (mm) Height (mm) SN74LV245ATDBR DB 20 MLA 342.9 336.6 28.58 SN74LV245ATDGVR DGV 20 MLA 338.1 340.5 20.64 SN74LV245ATDWR DW 20 MLA 333.2 333.2 31.75 SN74LV245ATNSR NS 20 MLA 333.2 333.2 31.75 SN74LV245ATPWR PW 20 MLA 342.9 336.6 28.58 SN74LV245ATRGYR RGY 20 MLA 190.0 212.7 31.75 Pack Materials-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 19-May-2007 Pack Materials-Page 3 MECHANICAL DATA MPDS006C – FEBRUARY 1996 – REVISED AUGUST 2000 DGV (R-PDSO-G**) PLASTIC SMALL-OUTLINE 24 PINS SHOWN 0,40 0,23 0,13 24 13 0,07 M 0,16 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 0°–8° 1 0,75 0,50 12 A Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,08 14 16 20 24 38 48 56 A MAX 3,70 3,70 5,10 5,10 7,90 9,80 11,40 A MIN 3,50 3,50 4,90 4,90 7,70 9,60 11,20 DIM 4073251/E 08/00 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion, not to exceed 0,15 per side. Falls within JEDEC: 24/48 Pins – MO-153 14/16/20/56 Pins – MO-194 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,22 0,65 28 0,15 M 15 0,25 0,09 8,20 7,40 5,60 5,00 Gage Plane 1 14 0,25 A 0°–ā8° 0,95 0,55 Seating Plane 2,00 MAX 0,10 0,05 MIN PINS ** 14 16 20 24 28 30 38 A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 DIM 4040065 /E 12/01 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0,15. Falls within JEDEC MO-150 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999 PW (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 14 PINS SHOWN 0,30 0,19 0,65 14 0,10 M 8 0,15 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 1 7 0°– 8° A 0,75 0,50 Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,10 8 14 16 20 24 28 A MAX 3,10 5,10 5,10 6,60 7,90 9,80 A MIN 2,90 4,90 4,90 6,40 7,70 9,60 DIM 4040064/F 01/97 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0,15. Falls within JEDEC MO-153 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. 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